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W. SHANNON.

SPRING STRUCTURE.

APPLICATION FILED AUG-2h m1.

1,313,341, Patented Aug. 19, 1919.

Mod/0rd 152-: 77 70 7 amen STATES P NT woonronn SHANNON, or LoUisviLLn, KENTUCKY] SPRING STRUCTURE.

Original application filed December 14,

To all whom; it may concern:

Be it known that I, WooDroRD SHANNON,

: acitizen of the United States, residing at ILoui'sville, inthecounty of Jefferson and State of Kentucky,"have invented certain new and useful Improvements in Spring 3 "specification.

cons'istsin mounting the side rails of the f l'alil' for Shifting fI'dIn 'O Iie supporting position to another, as by swinging bodily through an angle of,'say 90, and having the Structures, of which the following is a This invention is a division of an application" filed by me on or about December 14, 1915, Serial No. 66,688 and relates to spring structures particularly adapted for seats and the like of the type in which longitudinal supports or side rails with transverse supports or slats, extending between them and spaced by intermediate longitudinalmeinbers or braces, are combined to make a'fram'e upon which is mounted an rea of vertically disposed colled springs secured tothe slats of the frame by] their lower coils and tied together at or near their upper coils by binding elements which spacethe' springs apart. The invention has for its objects to improve the construction of such a spring structure in each of its main parts, to wit, the longitudinal supporting membersor side rails of the frame; the connections between the bracing members and the slats; the mounting of the springs; upon the slats; and the binding elements for spacing'thejupper portions of the springs apart.

' Accordingly, one feature of the invention "side r ils fcnned to re eiveone type of bed raih'for' exam le, that of an iron bedstead, corresponding thereto in distance apart, 'when the rails of theframe are in one position, and adapted to receive another type of bedrail, similarly, for instance, therails ef a wooden bedstead having a slat ledge, when" the rails of the frame are intheir other position; and another ffeatl'ir'e, subordinate to the foregoing, consists in unitin the railsef the-frame: I v

transverse members of the spring frame to said longitudinal rails, by means ofhinging connections, preferably comprising ears connected through pintles with the slats, and

through integral riveting ends the side Specification of Letters Patent.

tion thereto.

I Anotherfeature consists in mounting the bracing members on the slats, through means of deflected or downwardly oflset three facesof. the slat, and having tongues truck up from the braces in p'ositionto be pressed down upon the fourth face of the slat to hold the crimp in embracing rela' Another feature consists; in men ting each spring with its lower coil resting upon a.

slat and encircling the crimp adjacent thereto, and holding the spring in such relationbyother tongii'es struck up from the brace, on either-side of the crimp, and embracing the lower coil at opposite ends of a diameter which is at right angles tothat by which the coil seats iipon the slat; these coil-embracing tongues, incidentally, enabling the coil to resist spreading of the crimp which would releasethe slat.

Another feature consists in tying the upper ends of the springs together in pairs,

provided with deflected portions 'whichengage the intersectedparts when the binder [is turned down to the horizontal position with its own closed end in 'relationtothe next pair of springs to receive the next interlocking .endsof a binder. The invention will be fully understood upon reference to the detailed description of an illustrative embodiment of its several features {as disclosed L in the accompanying drawing. In said drawing Figure 1' is a plan view or a bed spring with intermediate pcrtioiis out both lqn w n y and imme ses,- bu ,s wi115; feursprin si substantially the relation which they weana ent's-m practice,

Patented Aug. 19,1919. 1915, Serial No. 66,688. Divided and this application 'filed Aug'us't 21, 1917. Serial No. 187,486.

- crimpssha'ped to receive and conform to to other springs longitudinally and versely spaced therefrom} Fig. 2 is an end view of the same, Fig. 3 is a detail view illustrating the transassembly of a brace with the slats.

Fig. 4 is a similar view illustrating the assembly of the binding elements with the upper coils of the springs.

members 5 through means of pintles 6, thereby adapting side rails 1 to assume the position shown in Fig. 1, or by full lines in Fig. 2, in which they. are adapted to-receive and rest upon the side rails of an iron bedstead. or to assume the position shown in dotted lines inFig. 2, when they willbe adapted to rest upon and hold the spring surface at the upper elevation above the slat-supporting ledge of a wooden bedstead. The better to adapt the'side'rails to rest uponslat ledges of a wooden bedstead, when the said side rails are turned downward, said railsare provided with supporting feet 7 near their respective ends, which maybe of any suitable construction, such for instance as sections of L-bar riveted to the rails as shown. To sustain the side rails in the dotted line position under the load imposed in the use of the structure, any

7 suitable form of latch 8 may beemployed.

The formof latch illustrated is pivoted-at 9, adapted to engage the'side rail. by its beak 10,and provided with flexible arm 1 :adapted to catch beneath the slat; 1

Braces 3 are assembled-with the slats 2 through means of downwardly olfset crimps 12conform1ngto the bottom and two' vertical .sldes offthe slat, and provided at top with tongues 13 closed down over the top edge of the slat, as shown in Fig.1. Braces 3 are corrugated or ribbed intermediately of their crimps to stiffen them and adapt them to serve as compression members -or struts between the slats, while to, secure them in the direction. of tension, and preventopenmg their crimps, they are tied together by the lower coils'ofthe springs 14 as will now be described.

:In mounting the springs upon the frame, :each spring bears with a diameter of its lower coil 14 adjacent its down-turned end .14 restlng above a.slat and with its inter sectlng diameter coincidingwithspring-attaching tongues 15, the coil of the spring encircling said tongue 15 as well as the crimp of the brace. Tongues 15 are then bent outwardly over the coil of the spring, and the spring is securely locked in position. In praetlce, the plane of the brace is suflicie'ntly" below the upper plane of the slat, to leave the lower coil under flexing strain and thus hold the parts against vibration.

To position the upper ends of the springs, any suitable form of outer rim 16 lmown to the art is employed to provide an outer margin and to the longitudinal sides of this rim 16, the adjacent springs are firmly bound by any known type ofclip 17 Within the marginal rim, the springsare firmly tied together inspaced relation by the novel form-of tying element 18. This comprises a substantially U shaped member having a closed end 19 adapted to lie'on one side of (preferably beneath) the plane of the upper coils lt of two adjacent springs-near their opposed points and provided with crimps 20, shown more plainly in Fig. 1, by which they are adapted to intersect the plane of said coils; and said tying members are also provided with freeinte'rlocking ends 21 extending transversely so asto adapt them to closedend with previously formed crips beneath the next' pair of top coils when it will be ready to receine the interlocking ends ofthe neXt tying member. This method of assembly is followed until the row of springs is completed. The end-tying members will,

of course, be united to the transverse bars of the 'marginal rim 16 in manner shown. 2 r 7 In additiontothe described relations between'the tyingmembers and the springs 'Whichtheir closed ends unite in pairs, certain of'the springs may have .the free ends of their top coils deflected as shownat 14: and engaging the closed ends ofthe tying members in a direction to resist unwinding of the springs. This is desirable for those springs which are not in such position as to bring their said free ends within reach of the marginal rim member-or other part adapted to resist unwinding. W r

'I claim:- R 1 a 1. In a spring' structure, the combination of aseries of transverse'fslats, side rails, and ears rigidly connected to said side rails-and pivotally connected to the endsof saidslats substantially the so that in either position of the side rails they act as support for the spring structure.

2. In a spring structure, the combination of a series of transverse slats, angle iron side 5 rails, and ears rigidly connected flange of said angle iron side rails and pivotally connected to the ends of said slats,

Copies of this patent may be obtained for so that in either position the other flanges or members of the angle iron side rails act as support for the spring structure.

The foregoing specification signed at Louisville, Kentucky, this first day of August, 1917.

WOODFORD SHANNON.

to one five centseach, by addressing the Commissioner of Patents, Washington, I). G1 

